EDELMAN REVIEW QUESTIONS UPDATED EXAM
QUESTIONS & ANSWERS WITH DETAILED
RATIONALES | INSTANT PDF DOWNLOAD
The AIUM suggest:
A. Do not perform studies without reason
B. Do not prolong Studies without reason
C. Minimize exposure time (but perform and complete diagnostic exam)
D. Use minimum output power and highest receiver gain required to produce optimal
images (ALARA Principle)
E. All of the above - correct answer -All of the above
sound waves are:
A. electric
B. Mechanical, transverse
C. spectral
D. longitudinal, mechanical - correct answer -longitudinal, mechanical
The speed of US in soft tissue is closest to:
A. 1,540 km/sec
B. 1.54 km/msec
C. 1,500 m/s
D. 1,540 mm/sec - correct answer -1,500 m/s
the frequency closest to the lower limit of US is:
A. 19,000 kHz
B. 10,000 MHz
,C. 20,000 msec
D. 15, 000 Hz - correct answer -15,000 Hz
which is not an acoustic variable?
A. density
B. pressure
C. distance
D. intensity - correct answer -intensity
The effects of soft tissue on US are called:
a. acoustic proliferation properties
b. dynamic effects
c. acoustic propagation properties
d. biologic effects - correct answer -acoustic propagation properties
All of the following are true EXCEPT
a. two waves with identical frequencies must interfere constructively
b. constructive interference is associated with waves that are in-phase
c. out-of-phase waves interfere destructively
d. waves of different frequencies may exhibit both constructive and destructive
inference at different times - correct answer -two waves with identical frequencies must
interfere constructively
Put in decreasing order:
A. deca
B. deci
C. micro
,D. centi - correct answer -deca
deci
centi
micro
______ is the time to complete one cycle
a. pulse duration
b. pulse period
c. period
d. duration period - correct answer -period
which of the following sound wave is ultrasonic and least useful in diagnostic imaging?
a. 30 KHz
b. 8 MHz
c. 8,000 Hz
d. 3,000 kHz
e. 15 Hz - correct answer -30 KHz
what is the frequency of a wave with 1 msec period?
a. 10,000 Hz
b. 1,000 kHz
c. 1 kHz
d. 1 MHz - correct answer -1 kHz
_________ is the distance covered by on cycle
a. pulse length
b. wavelength
, c. cycle distance
d. cycle duration - correct answer -wavelength
which sof sthe sfollowing sis sdetermined sby sthe ssource sand smedium?
a. sfrequency
b. speriod
c. spropagation sspeed
d. srange sresolution s- scorrect s sanswer s-range sresolution
propagation sspeed s= s__________ sx swavelength
a. spulse sduration
b. speriod
c. snumber sof scycles sin sthe spulse
d. sfrequency s- scorrect s sanswer s-frequency
As sa sresult sof s____ sthe spropagation sspeed sincreases
a. sincreasing sstiffness sand sincreasing sdensity
b. sincreasing sstiffness sand sincreasing selasticity
c. sdecreasing scompressibility sand sdecreasing sdensity
d. sdecreasing sstiffness sand sdecreasing sdensity s- scorrect s sanswer s-decreasing
scompressibility sand sdecreasing sdensity
Put sin sdecreasing sorder sof spropagation sspeed
A) sgas s
B) sliquid s
C) ssolid s- scorrect s sanswer s-solid s
QUESTIONS & ANSWERS WITH DETAILED
RATIONALES | INSTANT PDF DOWNLOAD
The AIUM suggest:
A. Do not perform studies without reason
B. Do not prolong Studies without reason
C. Minimize exposure time (but perform and complete diagnostic exam)
D. Use minimum output power and highest receiver gain required to produce optimal
images (ALARA Principle)
E. All of the above - correct answer -All of the above
sound waves are:
A. electric
B. Mechanical, transverse
C. spectral
D. longitudinal, mechanical - correct answer -longitudinal, mechanical
The speed of US in soft tissue is closest to:
A. 1,540 km/sec
B. 1.54 km/msec
C. 1,500 m/s
D. 1,540 mm/sec - correct answer -1,500 m/s
the frequency closest to the lower limit of US is:
A. 19,000 kHz
B. 10,000 MHz
,C. 20,000 msec
D. 15, 000 Hz - correct answer -15,000 Hz
which is not an acoustic variable?
A. density
B. pressure
C. distance
D. intensity - correct answer -intensity
The effects of soft tissue on US are called:
a. acoustic proliferation properties
b. dynamic effects
c. acoustic propagation properties
d. biologic effects - correct answer -acoustic propagation properties
All of the following are true EXCEPT
a. two waves with identical frequencies must interfere constructively
b. constructive interference is associated with waves that are in-phase
c. out-of-phase waves interfere destructively
d. waves of different frequencies may exhibit both constructive and destructive
inference at different times - correct answer -two waves with identical frequencies must
interfere constructively
Put in decreasing order:
A. deca
B. deci
C. micro
,D. centi - correct answer -deca
deci
centi
micro
______ is the time to complete one cycle
a. pulse duration
b. pulse period
c. period
d. duration period - correct answer -period
which of the following sound wave is ultrasonic and least useful in diagnostic imaging?
a. 30 KHz
b. 8 MHz
c. 8,000 Hz
d. 3,000 kHz
e. 15 Hz - correct answer -30 KHz
what is the frequency of a wave with 1 msec period?
a. 10,000 Hz
b. 1,000 kHz
c. 1 kHz
d. 1 MHz - correct answer -1 kHz
_________ is the distance covered by on cycle
a. pulse length
b. wavelength
, c. cycle distance
d. cycle duration - correct answer -wavelength
which sof sthe sfollowing sis sdetermined sby sthe ssource sand smedium?
a. sfrequency
b. speriod
c. spropagation sspeed
d. srange sresolution s- scorrect s sanswer s-range sresolution
propagation sspeed s= s__________ sx swavelength
a. spulse sduration
b. speriod
c. snumber sof scycles sin sthe spulse
d. sfrequency s- scorrect s sanswer s-frequency
As sa sresult sof s____ sthe spropagation sspeed sincreases
a. sincreasing sstiffness sand sincreasing sdensity
b. sincreasing sstiffness sand sincreasing selasticity
c. sdecreasing scompressibility sand sdecreasing sdensity
d. sdecreasing sstiffness sand sdecreasing sdensity s- scorrect s sanswer s-decreasing
scompressibility sand sdecreasing sdensity
Put sin sdecreasing sorder sof spropagation sspeed
A) sgas s
B) sliquid s
C) ssolid s- scorrect s sanswer s-solid s
